If a user downloaded a file lacking an extension on Windows, and then "Open"-ed it from the downloads panel, if there was an executable file in the downloads directory with the same name but with an executable extension (such as .bat or .exe) that executable would have been launched instead. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-firefox-esralpine-linux-upgrade-firefoxalpine-linux-upgrade-thunderbirdalpine-linux-upgrade-librewolf | Aug 22, 2024 | Jan 7, 2021 | |
| Mfsa2020 54 | mozilla-firefox-upgrade-84_0 | Dec 16, 2020 | Dec 15, 2020 | |
| Mfsa2020 55 | mozilla-firefox-esr-upgrade-78_6 | Dec 16, 2020 | Dec 15, 2020 | |
| Mozilla Thunderbird | mozilla-thunderbird-upgrade-78_6 | Dec 16, 2020 | Dec 15, 2020 | |
| Oracle Solaris | oracle-solaris-11-4-upgrade-mail-thunderbird-78-6-0-11-4-30-0-1-88-0 | Feb 17, 2021 | Jan 7, 2021 | |
| Suse | — | suse-upgrade-mozillafirefoxsuse-upgrade-mozillafirefox-branding-upstreamsuse-upgrade-mozillafirefox-buildsymbolssuse-upgrade-mozillafirefox-develsuse-upgrade-mozillafirefox-translations-commonsuse-upgrade-mozillafirefox-translations-othersuse-upgrade-mozillathunderbirdsuse-upgrade-mozillathunderbird-translations-commonsuse-upgrade-mozillathunderbird-translations-other | Dec 22, 2020 | Dec 21, 2020 |
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